html表格cell合并插件

数据展示时需要合并部分数据自己写了一个简单插件

合并前:



合并后:



调用示例:

var trs = $('table#dataList tbody tr').not('#demo').get();
var cellMerger = new CellMerger();
//合并大区
cellMerger.merge(trs, new Array('MSGNUMBER','LARGEAREA'), new Array('LARGEAREA'));
cellMerger.merge(trs, new Array('MSGNUMBER'), new Array('option','statusName','TITLE','MSGNUMBER','CREATEOWNER','CTIME'));

参数说明:

第一个参数是要处理合并的行, 第二个参数是合并条件, 比如列1和列2对应值相等什么的, 支持多条件, 第三个参数是要合并的列

合并插件:

function CellMerger(){
}

CellMerger.prototype.merge = function (trs, needIndexs, mergedIndexes){
var mergeds = new Array();
for(x in mergedIndexes){
mergeds.push("td[index="+mergedIndexes[x]+"]");
}
var needs = new Array();
for(x in needIndexs){
needs.push("td[index="+needIndexs[x]+"]");
}
this.mergeCell(trs, needs, mergeds);
};

CellMerger.prototype.conditionMatch = function (targets, currents){
if(targets.length==0 && currents.length==0){
return true;
}
if(targets.length != currents.length){
return false;
}
for(x in targets){
if(targets[x]!=currents[x]){
return false;
}
}
return true;
};

CellMerger.prototype.rowspanAndRemove = function (trs, curIndex, sames, mergeds){
var rowspan=sames.length+1;
for(x in mergeds){
$(trs[curIndex]).children(mergeds[x]).attr('rowspan',rowspan);
}
for(var j=0;j<sames.length;j++){
for(x in mergeds){
$(trs[sames[j]]).children(mergeds[x]).remove();
}
}
};

CellMerger.prototype.mergeCell = function (trs, needs, mergeds){
var targets = new Array();
var curIndex = 0;
var sames = new Array();
for(var i=0;i<trs.length;i++){
var current = new Array();
for(x in needs){
current[x] = $(trs[i]).children(needs[x]).html();
}
if(targets.length == 0){
//初始化比对条件
curIndex = i;
for(x in needs){
targets[x] = $(trs[i]).children(needs[x]).html();
}
}
else{
if(this.conditionMatch(targets, current)){
sames.push(i);
//最后一条进行向前合并
if(i == trs.length-1 && sames.length>0){
this.rowspanAndRemove(trs, curIndex, sames, mergeds);
}
}
else{
//合并相似项
if(sames.length>0){
this.rowspanAndRemove(trs, curIndex, sames, mergeds);
}
//清空数组, 重置比较索引
curIndex = i;
sames = new Array();
for(x in needs){
targets[x] = $(trs[i]).children(needs[x]).html();
}
}
}
}
};